Cropper Hopper 12 x 12 Dividers

I use the vertical Cropper Hopper system to store my cardstock and patterned paper. I originally bought the whole kits of large holders, indivual paper holders that fit inside the large ones and these dividers. As I add more and more paper collections, I need more dividers. It is so handy to be able to buy just the dividers. They keep my paper organized as I organize it by Manufacturer alphabetically, then by collection alphabetically. My cardstock is organized by rainbow colors. Cropper Hopper makes a quality product. I highly recommend these dividers.